Sri Lanka National Dengue Control Unit: Weekly Dengue Update, Week 35 (24th – 30th August 2026) - ReliefWeb

During the 35th week, 1296 suspected dengue cases were reported across 24 districts, compared to 1802 cases in the previous week, reflecting 28.1% decrease. The Western Province accounted for 50.9% of total cases, with the Colombo Municipal Council (CMC) contributing 3.5%, the rest of Colombo District 19.3%, Gampaha District 20.9%, and Kalutara District 7.3%. Outside the Western Province, notable case contributions were reported from Kandy (11.7%), Kegalle (5%), Ratnapura (4.2%), Galle (4.2%), Matara (3.3%), Kurunegala (2.9%), Puttalam (2.9%), and Kalmunai (2.4%). (see Table 1) (compared to the previous week, colour of %: red=increase, green=decrease, blue=no change).